Safety-pin.



N. HUNSBERGER.

SAFETY PIN.

APPLICATION FILED SEPT. 12, 19M.

Patented Apr. 13, 1915.

WITNESSES INVENTOR NORRIS PEFERSCO PHDYOHIHO S vmN a STATES PATENT oniucn.

V NEVILLE HUNSBERGER, 0F ALDAN, PENNSYLVANIA, ASSIGNOR TO SAMUEL V STERNBERGER, OF PHILADELPHIA, PENNSYLVANIA.

SAFETY-PIN.

Specification of Letters Patent.

Patented Apr. 13,1915.

Application fiied September 12, 1914. Serial No. 861,352.

To all whom it may concern:

Be it known that I, NEVILLE HUNsnERGER, a citizen of the United States, residing at Alda'n, county of Delaware, State of Pennin the accompanying drawing, but theimportant instrumentalities thereof may be varied, and so it is to be understood that the invention is not limited to the specific details shown and described.

Figure 1 represents a side elevation of a safety pin embodying my invention. Fig. 2 represents a partial side elevation and partial longitudinal section thereof. Fig. 3 represents an end elevation of the shield on an enlarged scale. Fig. 4 representsa transverse section on line a"w, Fig. 2. Fig. 5 represents a plan View of a portion of the pin proper on an enlarged scale. Fig. 6 represents a longitudinalsection of a portion on line y y, Fig. 3. I

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings :1 designates the pin proper of a safety pin, 2 the point portion thereof, 3 the back member thereof, and 4 the coil which is intermediate of the member 3 and the pin proper 1 and imparts resiliency to the latter.

5 designates the shield, whose lower portion in the position shown in the drawings is connected firmly with the adjacent terminal of the back member 3 and whose upper portion is adapted to receive the point por= tion of the pin proper 1.

On the opposite sides of the point portion of the pin proper are the grooves 6, which form the reduced neck 7 these several features thus far described being well known. I

The shield 5 is composed of a piece of light metal bent on itself so as to embrace tightly the member 3 and provide opposite thereto, the chamber 8 to receive the point portion of the pin proper 1, which features are well known.

The inner ends of the side walls of the channel 8 are inturned toward each other,

forming the lips 9, whose inner edges are separated from each other, forming the channel 10, through which the neck 7 is adapted to pass, said channel being taperlng 1n what may be called upward direction, said lips being somewhat resilient so that they may separate laterally and then close toward each other.

In what may be termed the tops of the lips 9 is the recess 11, which is open below so as to be in communication with the adjacentend of the channel 10, the same being adapted to receive the point portion of the pin 1 about the grooves 6 and neck 7. The upper terminals of the walls of the channel 10, where they join the lower terminal of the divided wall of the recess 11 form the shoulders 12, which project toward each other,

' portion of the pin proper is introduced into the shield when the walls of the grooves 6 contact with the inclined tapering edges of the opposite lips 99, thus spreading apart the latter by a wedging action. The point portion rises in the shield to full extent and enters the recess 11, when the base of the neck 7, which owing to the grooves 6 is of less width than the adjacent portions of the pin, clears the shoulders 12 and is just above the shoulders 12. Then the lips 9 are no longer controlled by said neck, whereby they spring together, and the shoulders close under said neck with a snap and engage with the same, said neck thus being seated on said shoulders and so interlocked with the latter as it is clamped tightly by said shoulders from below, while the upper curved portion of the pin around said neck is pressed solidly against the bend 13, so that the pin is held comparatively without play on the guard back member 3 When th e neck rides the.

shoulders. 12--for cing apart the lips 9, allowing the neck to pass through the "channel 1 0v to'the lowermost end of the latterwhen the i pin 'proper'is moved laterally andso' clears 'the' shield, thejefiect ofyvhich is evident. V

"Iamaware thatit is'not newtoifo'rm the ning of the same,'- whereby said shoulders'are seated on said shoulders;

1am aware also that itis not new totforrn inturned projections. on the sides: of the V shield by swaging'themetal of said sides, the same forming. recesses in theouteri'faces oient' holding-poyvenfor the pin point, but

of said'sides which are objectionable in appearanc'e and "liableto fracturethe metal of 1 20f said sides; while being necessarily small on theann'er faces of sald sldeshavelnot sulfiin my construction, the sides of jthe, shield lar'e'leftfin the normal unbroken conditionof fthe-metal of the sameythelips '9 are on the, 1 Y extreme inner ends'of said sidesQthe shoul- I l bendpreventing any lost motion of the point in said recess, Wherefore I NV-itnesses:

ders 12, areclose to theiback bend 13 of the 1 shield so as tosupport the pin point thereon in its full position against said bend, and said point fully fills the circular recess 11 formed by the shoulders 12 and said back pin What I claim as neW and desire to secure Letters Patent, is

In a safety pin5 apin proper having in the side of its polnt portion a groove and a neck,

and a pin.point "shield;'bent upon itself to form'fa backand side Walls and having on the'inner endsiofits side Walls inwardlyextending lips'entirely separated from each other andtapered froni -their outerends inwardly, said lips having inwardly extended shoulders adjacent to the back of the shield whereby said neck is seated on the shoulders of said end lips While being held tightly against the back of the shield and so interlocked by said shouldersand back. 7 K NEVILLE HUN SBERGER.

h JOHN A. WIEDERS EIM, V f; N. BUSSINGER.

co ies-6r this patent 'm'ay be obtaiaed'for 'fi v e cnts each; by address ingthe Commissioner of Patents, 1' 5 i ;W'ash 1ngton, D.G.- a 

